I can receive e-mails, but I can’t send
A typical e-mail issue is being able to receive e-mails, but not being able to send. When 
you think about it, it doesn’t make sense that your e-mails are half working. But, when you break it down in terms of how the e-mail flow works, you’ll be able to better troubleshoot and fix your computer issue.
When you set up your e-mail account, you have to set up the incoming (POP3) and outgoing (SMTP) server information. For Windows, you may set up an e-mail account within Outlook or Outlook Express. For Mac, you may configure the pop3 and smtp settings within Entourage, Mail, and Thunderbird. These settings define how you will receive and send e-mails. In terms of receiving e-mails, it’s pretty simple - you just need to input the information your e-mail provider gives you. If you have gmail, it is pop.gmail.com. For TimeWarner’s Roadrunner, it is pop-server.nyc.rr.com. So, you would just enter this pop3 or incoming info where the field is requested.
For outgoing e-mail or smtp info, it could be a little trickier. It is recommended to stick with the e-mail provider’s info first (i.e. gmail: smtp.gmail.com). However, within the last couple of years, some of the Internet Providers (i.e. TimeWarner, Verizon) require for you to enter their settings for outgoing e-mail. For instance, although you have gmail for your e-mail account, your Verizon DSL might require inputting its settings to send e-mails.
How do you know that you need to enter your Internet Providers smtp settings instead of your e-mail provider’s outgoing information? If sending e-mails works fine at home, but you have trouble when visiting elsewhere, then that could be the sure case of needing to switch the SMTP setting to you ISP (Internet Service Provider). This If you’re still having trouble resolving your SMTP issue, then you probably need to call an NYC computer technician to help.
